// Copyright (C) Kumo inc. and its affiliates.
// Author: Jeff.li lijippy@163.com
// All rights reserved.
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published
// by the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.
//


#pragma once

namespace kumo::pollux::common::testutil {
    /// Get a truely random seed and log it for future reproducing if
    /// POLLUX_TEST_USE_RANDOM_SEED is set.  Otherwise return a fixed value so test
    /// runs are deterministic.  We use environment variable because `buck test`
    /// does not allow pass in command line arguments.
    unsigned getRandomSeed(unsigned fixedValue);

    bool useRandomSeed();
} // namespace kumo::pollux::common::testutil
